The Hoffman House Bartender's Guide by Charles S. Mahoney (1905, p.140)

0.5gin — Nicholson ginbase
1 sliceOrange — Put one slice in the glass.garnish
0.5French vermouth — French Vermouthmodifier
ice — shaved iceother
  1. Put the orange slice in a glass and fill with shaved ice.
  2. Add the gin and French Vermouth, shake well, strain into a cocktail glass, and serve.

Garnish: Orange slice

Ice: Shaved ice

Mahoney presents this as one of the house drinks for which the Hoffman bar was famous.

See also: Mahoney Cocktail, Martini Cocktail